L. Sun

works on

BESIII 2 BESIII detector 1 branching fraction 1 charm meson 1 charmonium 1 double dalitz decay 1 eta meson decay 1 form factors 1 lepton universality 1 pi+ pi- spectrum 1 psi(3686) decay 1 rare decay 1

From the 3 of 21 linked papers with an AI index.

activity

20242026

collaborators

21 papers

hep-ex2026

Measurement of the double Dalitz decay $I^\cdot \to e^{+} e^{-} e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

The BESIII experiment measured the rare decay of the eta meson into two electron-positron pairs, determining its branching fraction to be about 2.6 × 10⁻⁵.

hep-ex2026

Evidence of $I ¨ (3770) \to I ¨ ^{0} J / I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

We report the first evidence for the hadronic transition $I ¨ (3770) \to I ¨ ^{0} J / I ¨ $ using a data sample of $20.3 fb^{- 1}$ collected at $s = 3.773$ ~GeV with the BESIII…

hep-ex2026

Measurement of the branching fraction of $D_{s}^{*+} \to e^{+} e^{-} D_{s}^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

The branching fraction of the electromagnetic Dalitz decay $D_{s}^{*+} \to e^{+} e^{-} D_{s}^{+}$ is measured with an $e^{+} e^{-}$ collision data sample collected by the BESIII experi…

hep-ex2026

First Measurement of the $D_{s}^{+} \to K^{} (892)^{0} I^¼^{+} I^½_{I^} ¼$ Decay, Study of Dynamics and Test of Lepton Universality with $D_{s}^{+} \to K^{} (892)^{0} ℓ^{+} I^½_{ℓ}$ Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +715

The BESIII experiment measured the semileptonic decays of the D_s^+ meson to a K*(892)^0 and a lepton-neutrino pair, determining branching fractions, hadronic form‑factor parameter…

hep-ex2026

Measurement of the Absolute Branching Fraction of Xi(1530)^{-} to (Xi pi)^{-} and Updated Measurement of the Branching Fraction of psi(3686) to anti-Xi^{+} Xi(1530)^{-} + c.c

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

Based on (2712.4+-14.3)*10^{6} psi(3686) events collected with the BESIII detector, the decays Xi(1530)^{-} to Xi^{0} pi^{-} and Xi(1530)^{-} to Xi^{-} pi^{0} are investigated join…

hep-ex2026

Observation of a threshold enhancement in the $I ¨ ^{+} I ¨ ^{-}$ spectrum in $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

The BESIII experiment analyzed over 2.7 billion ψ(3686) decays and observed a clear resonance-like enhancement near the π⁺π⁻ mass threshold in ψ(3686)→π⁺π⁻J/ψ decays, measuring its…

Measurement of the double Dalitz decay I^⋅→e+e−e+e−

Evidence of I¨(3770)→I¨0J/I¨

Measurement of the branching fraction of Ds∗+​→e+e−Ds+​

First Measurement of the Ds+​→K∗(892)0I^¼+I^½I^​¼ Decay, Study of Dynamics and Test of Lepton Universality with Ds+​→K∗(892)0ℓ+I^½ℓ​ Decays

Measurement of the Absolute Branching Fraction of Xi(1530)^{-} to (Xi pi)^{-} and Updated Measurement of the Branching Fraction of psi(3686) to anti-Xi^{+} Xi(1530)^{-} + c.c

Observation of a threshold enhancement in the I¨+I¨− spectrum in I¨(3686)→I¨+I¨−J/I¨ decays

Measurement of the double Dalitz decay $I^\cdot \to e^{+} e^{-} e^{+} e^{-}$

Evidence of $I ¨ (3770) \to I ¨ ^{0} J / I ¨ $

Measurement of the branching fraction of $D_{s}^{*+} \to e^{+} e^{-} D_{s}^{+}$

First Measurement of the $D_{s}^{+} \to K^{} (892)^{0} I^¼^{+} I^½_{I^} ¼$ Decay, Study of Dynamics and Test of Lepton Universality with $D_{s}^{+} \to K^{} (892)^{0} ℓ^{+} I^½_{ℓ}$ Decays

Observation of a threshold enhancement in the $I ¨ ^{+} I ¨ ^{-}$ spectrum in $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ decays